package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.gulimall.auth.util.HttpUtils;
import com.atguigu.gulimall.auth.vo.MemberRespVo;
import com.atguigu.gulimall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * @author alibaba
 */
@Controller
@Slf4j
public class OAuth2Controller {

    @Autowired
    private MemberFeignService memberFeignService;

    @GetMapping("/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession session) throws Exception {
        // 1.根据code换取accessToken
        Map<String, String> map = new HashMap<String, String>(20, 20);
        map.put("client_id", "976066087");
//        map.put("client_id", "2636917288");
//        map.put("client_secret", "6a263e9284c6c1a7462eadacc11b6e2");
        map.put("client_secret", "087ca69e6ebe7e4fdea276b5c964f277");
        map.put("grant_type", "authorization_code");
//        map.put("redirect_uri", "http://gulimall.com/oauth2.0/weibo/success");
        map.put("redirect_uri", "https://www.bing.com/?FORM=Z9FD1");
        map.put("code", code);
        HttpResponse response = HttpUtils.doPost("api.weibo.com", "/oauth2/access_token", "post", null, null, map);
        // 2.处理
        if (response.getStatusLine().getStatusCode() == 200) {
            // 获取到了accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);
            // 知道当前是哪个用户
            // 1.当前用户如果第一次进网站，自动注册进来（为当前社交用户生成一个会员信息账号，以后这个账号就对应指定的会员）
            // 登录或注册这个社交用户
            R oauthLogin = memberFeignService.oauthLogin(socialUser);
            if (oauthLogin.getCode() == 0) {
                MemberRespVo data = oauthLogin.getData(new TypeReference<MemberRespVo>() {
                });
                log.debug("登录成功！用户信息：{}" + data.toString());
                session.setAttribute("loginUser", data);
                // 2.登录成功调回首页
                return "redirect:http://gulimall.com";
            } else {
                return "redirect:http://auth.gulimall.com/login.html";
            }
        } else {
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }
}
